Function removePermission

app/core/api/classrooms.js:162–167

({ classroomID, permission })

  },

  removePermission ({ classroomID, permission }) {
    return fetchJson(`/db/classroom/${classroomID}/permission`, _.assign({}, {
      method: 'DELETE',
      json: { permission }
    }))
  },

  getEdLinkClassrooms () {
    return fetchJson('/ed-link/classrooms', _.assign({}, {